1 to 25 of 26 Security Testing Jobs in the Thames Valley

big? Are you ready to love your job? The adventure begins right here, with you, at SITA. PURPOSE As a Lead Penetration Tester , part of the SITA Enterprise Information Security Office, you will assess SITA infrastructure and products to identify information security weaknesses and provide remediation strategies. You will also contribute to the automation of security testing as part of the product development lifecycle. Key Responsibilities Conduct authorized assessment of infrastructure and applications to proactively identify security weaknesses. Verify weaknesses by leveraging attacker techniques to evaluate the difficulty and effectiveness of potential attack from various threat actors. Provide comprehensive and actionable recommendations to counter the threat posed by identified security weaknesses, given the applicable … threat landscape. Bring an offensive mindset to the design of internal solutions and provide input to the selection of countermeasures and security controls through technical risk assessment. Report findings to technical audiences (e.g.: product development teams, IT, operations), and to business management and leadership, indicating the impact to the business of verified weaknesses found. Research and develop testing More ❯

maintain comprehensive test plans, strategies, and roadmaps to ensure product quality.Collaborate with product managers, engineering managers, engineers, and stakeholders to define requirements and acceptance criteria.Lead risk analysis to prioritise testing efforts and identify key focus areas. Design, implement, and execute manual and automated test cases to validate functionality, performance, security, and scalability. Ensure complete test coverage through the … cases, scripts, and scenarios. Identify, document, and track defects using bug tracking tools, and collaborate with development teams for resolution.Develop and maintain automated test scripts and frameworks to enhance testing efficiency. Mentor and guide junior QA engineers, fostering a culture of learning and continuous improvement. Monitor and report on QA metrics, including test coverage, defect rates, and release readiness. … JIRA, TestNG, Postman, Cypress, etc.). Manual and Automation experience required. Strong understanding of software development lifecycles (SDLC) and QA methodologies (Agile, Waterfall, etc.). Knowledge of performance and security testing practices. Familiarity with cloud platforms (AWS, Azure, or GCP) is a plus. Exceptional problem-solving and analytical skills. Strong communication and collaboration skills to work effectively across More ❯

We are currently seeking a highly skilled and results-oriented Penetration Tester with at least 5 years of hands-on penetration testing experience. This is a rare opportunity to join a highly skilled and diverse security team committed to continuous growth and excellence in the field of offensive security. This role is office-based with occasional travel to … including web, mobile, infrastructure, wireless, cloud, and social engineering. Execute red team, purple team, and breach simulation exercises tailored to client maturity and objectives. Deliver detailed and actionable penetration testing reports Collaborate with clients to understand their specific security needs and present findings in a clear manner. Develop and maintain security testing methodologies and procedures in … penetration test reports to ensure they are up to standard and meet test objectives. Mentor junior penetration testers. Assist in incident response activities, including investigation, containment, and remediation of security incidents. Conduct cloud security assessments. Essential Requirements Must be currently residing in mainland UK . Minimum 5 years of practical penetration testing experience (web, infrastructure, external/ More ❯

of 20 yrs+) ready to talk to qualified individuals. We are currently seeking an enthusiastic and technically capable Penetration Tester with at least 6 months of hands-on penetration testing experience and a strong interest in developing advanced technical skills. This is a rare opportunity to join a highly skilled and diverse security team committed to continuous growth … and excellence in the field of offensive security. Key Responsibilities: Conduct hands-on Web Application Penetration Testing Support and contribute to Infrastructure and Cloud Security Assessments Be mentored and trained towards Adversarial Simulation , Red Team Operations , and other advanced offensive security techniques Write detailed, clear, and professional reports for technical and non-technical stakeholders Collaborate with a … team of skilled professionals and contribute to knowledge sharing Requirements: Minimum 6 months of practical penetration testing experience (freelance, consultancy, or internal testing roles considered) OSCP certification is essential (OSEP, OSCE3, or other advanced Offensive Security certifications also accepted) Demonstrable knowledge of Web Application security , including common vulnerabilities (e.g., OWASP Top 10) Strong desire to deepen More ❯

leader in the cybersecurity and risk consulting space. Working with a wide range of organizations — from FTSE 100 companies to critical infrastructure and government entities — they provide high-quality security testing and advisory services across various industries. This is an excellent opportunity to join a team that values your expertise, supports your growth, and offers the flexibility of … tests on infrastructure, networks, cloud environments, and web applications. Deliver high-quality, client-ready reports detailing findings, impact, and practical remediation advice. Collaborate directly with client stakeholders during scoping, testing, and results presentations. Keep current with emerging threats, vulnerabilities, and tools in the offensive security landscape. Contribute to internal development of testing methodologies, tooling, and knowledge sharing. … with red teaming, threat simulation, or assumed breach testing. Scripting/automation with Python, Bash, or PowerShell. Previous consultancy or client-facing experience. Eligibility for or possession of UK Security Clearance (preferred but not required). Solid understanding of common attack techniques and vulnerability classes (e.g., OWASP Top 10, MITRE ATT&CK). Strong familiarity with tools such as More ❯

leader in the cybersecurity and risk consulting space. Working with a wide range of organizations — from FTSE 100 companies to critical infrastructure and government entities — they provide high-quality security testing and advisory services across various industries. This is an excellent opportunity to join a team that values your expertise, supports your growth, and offers the flexibility of … tests on infrastructure, networks, cloud environments, and web applications. Deliver high-quality, client-ready reports detailing findings, impact, and practical remediation advice. Collaborate directly with client stakeholders during scoping, testing, and results presentations. Keep current with emerging threats, vulnerabilities, and tools in the offensive security landscape. Contribute to internal development of testing methodologies, tooling, and knowledge sharing. … with red teaming, threat simulation, or assumed breach testing. Scripting/automation with Python, Bash, or PowerShell. Previous consultancy or client-facing experience. Eligibility for or possession of UK Security Clearance (preferred but not required). Solid understanding of common attack techniques and vulnerability classes (e.g., OWASP Top 10, MITRE ATT&CK). Strong familiarity with tools such as More ❯

days per week in London) Join a Global Tech-Driven Property Marketplace Are you an experienced QA Lead with a passion for driving quality in web and mobile testing? Join a fast-growing, innovative global technology platform that is leading the way in transforming its B2C services. Backed by substantial investment and a financially secure parent company, this is … Agile ceremonies, offering valuable insights and feedback to improve processes and drive continuous improvement. Test Strategy Development: Design and implement robust test strategies, including functional validation, API/interface testing, cross-platform compatibility, negative test cases, and exploratory testing. Regression & Release Testing: Develop and maintain comprehensive regression test suites, ensuring product stability with each release cycle. Risk-Based … Testing: Perform risk-based testing to maximise test coverage while enhancing efficiency. Automation Expertise: Create and maintain scalable test automation scripts, integrating continuous testing seamlessly within CI/CD pipelines to ensure rapid and reliable delivery. Test Suite Execution & Monitoring: Regularly execute automated test suites, ensuring reliable execution, accurate result validation, and quick resolution or escalation of More ❯

Outside IR35) 6 Month Contract London/Remote Working Working background as a Test Lead within the public sector Previous experience with Government Digital Standards (GDS) Previous experience in security testing with OWASP ZAP Performance testing knowledge (JMeter preferred) Experience in CI/CD Integration for Test Automation Azure DevOps proficiency for Test Management and defect tracking … Working experience of BDD Framework (Cucumber) Eligible for SC clearance Nice to have: Immediately available Current BPSS clearance Familiarity with accessibility testing to ensure compliance standards with WCAG. If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. If this job isn't quite right More ❯

days per week in London) Join a Global Tech-Driven Property Marketplace Are you an experienced QA Lead with a passion for driving quality in web and mobile testing? Join a fast-growing, innovative global technology platform that is leading the way in transforming its B2C services. Backed by substantial investment and a financially secure parent company, this is … Agile ceremonies, offering valuable insights and feedback to improve processes and drive continuous improvement. Test Strategy Development: Design and implement robust test strategies, including functional validation, API/interface testing, cross-platform compatibility, negative test cases, and exploratory testing. Regression & Release Testing: Develop and maintain comprehensive regression test suites, ensuring product stability with each release cycle. Risk-Based … Testing: Perform risk-based testing to maximise test coverage while enhancing efficiency. Automation Expertise: Create and maintain scalable test automation scripts, integrating continuous testing seamlessly within CI/CD pipelines to ensure rapid and reliable delivery. Test Suite Execution & Monitoring: Regularly execute automated test suites, ensuring reliable execution, accurate result validation, and quick resolution or escalation of More ❯

days per week in London) Join a Global Tech-Driven Property Marketplace Are you an experienced QA Lead with a passion for driving quality in web and mobile testing? Join a fast-growing, innovative global technology platform that is leading the way in transforming its B2C services. Backed by substantial investment and a financially secure parent company, this is … Agile ceremonies, offering valuable insights and feedback to improve processes and drive continuous improvement. Test Strategy Development: Design and implement robust test strategies, including functional validation, API/interface testing, cross-platform compatibility, negative test cases, and exploratory testing. Regression & Release Testing: Develop and maintain comprehensive regression test suites, ensuring product stability with each release cycle. Risk-Based … Testing: Perform risk-based testing to maximise test coverage while enhancing efficiency. Automation Expertise: Create and maintain scalable test automation scripts, integrating continuous testing seamlessly within CI/CD pipelines to ensure rapid and reliable delivery. Test Suite Execution & Monitoring: Regularly execute automated test suites, ensuring reliable execution, accurate result validation, and quick resolution or escalation of More ❯

more regularly. Expected Salary: £59,500 - £92,400 (depending upon experience) Contract type: Permanent Key Responsibilities We are driving a culture of whole team accountability for quality and continuous testing and are looking for people who can help us do that. Initially, as a Senior Quality Engineer you will be embedded into a software engineering product team composed typically … Analyst(s) delivering our mobile apps. As well as creating and executing some of the team's checks, your role in the team will be to mentor others in testing practice; coach them to adopt and improve their quality approaches including deployment approaches and observability; review and contribute to the team's codebase and pipeline configuration; help the team … patterns used to build mobile applications. Practical experience of Continuous Integration/Continuous Delivery of native mobile apps and associated back end services. Coaching teams in use of Continuous Testing and shift left/shift right approaches. Thinking critically about engineering approaches, using questioning techniques to lead team discussions about quality risks and appropriate responses. Leading elaboration activities (such More ❯

Social network you want to login/join with: Senior Principal Offensive Security Researcher, Slough Client: Oracle Location: Slough, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 5 Posted: 26.06.2025 Expiry Date: 10.08.2025 Job Description: As a member of our technical leadership team, you will be responsible for leading the planning and delivery of in … depth security assessments across a variety of products and services. You will author reports, own projects from start to finish, present findings to executive leadership, and take ownership of your team's work. Your projects could include secure systems design, static and dynamic analysis of complex infrastructures, writing fuzzers for network protocols or programming languages, or reverse engineering firmware … used in cloud servers. Your responsibilities include: Designing and evaluating complex security systems Conducting security assessments and vulnerability research Performing in-depth security testing using static and dynamic analysis Creating tools to help engineering teams identify security weaknesses Collaborating with engineering teams to triage and fix security issues Mentoring team members in security More ❯

Social network you want to login/join with: Opus are looking for multiple experienced Application Security Architects to join our clients growing AppSec team. As our client continues the development and improvement of their overall cyber team, they’re looking for AppSec specialists to shape the strategic direction of our clients application security posture, collaborating with developers … product managers, and security stakeholders to ensure that security is embedded throughout the SDLC. Main Responsibilities: Define and enforce secure architecture standards and frameworks across web, mobile, and cloud-native applications. Provide security guidance throughout product development, including threat modeling, secure coding, design reviews, and architecture assessments. Lead the implementation of DevSecOps practices, integrating security into … CI/CD pipelines. Identify and remediate application-level vulnerabilities through static/dynamic analysis, manual code review, and security testing. Collaborate with engineering and platform teams to secure APIs, microservices, and containerized workloads. Evaluate and implement security tools for secure code analysis and runtime protection. To be considered for this role, you should have: Proven experience in More ❯

Social network you want to login/join with: Senior Application Security Architect, High Wycombe Client: Opus Recruitment Solutions Location: High Wycombe, United Kingdom Job Category: Other EU work permit required: Yes Job Views: 3 Posted: 26.06.2025 Expiry Date: 10.08.2025 Job Description: Opus is looking for multiple experienced Application Security Architects to join our client's growing AppSec … team. As our client continues developing and improving their cyber team, they seek AppSec specialists to shape the strategic direction of their application security posture. The role involves collaborating with developers, product managers, and security stakeholders to embed security throughout the SDLC. Main Responsibilities: Define and enforce secure architecture standards across web, mobile, and cloud-native applications. … Provide security guidance during product development, including threat modeling, secure coding, design reviews, and architecture assessments. Lead the implementation of DevSecOps practices, integrating security into CI/CD pipelines. Identify and remediate application vulnerabilities through static/dynamic analysis, manual review, and security testing. Collaborate with engineering and platform teams to secure APIs, microservices, and containerized workloads. More ❯

Social network you want to login/join with: Application Security Architect, high wycombe col-narrow-left Client: Opus Recruitment Solutions Location: high wycombe, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Opus are looking for multiple experienced Application Security Architects … team. As our client continues the development and improvement of their overall cyber team, they’re looking for AppSec specialists to shape the strategic direction of our clients application security posture, collaborating with developers, product managers, and security stakeholders to ensure that security is embedded throughout the SDLC. Main Responsibilities: Define and enforce secure architecture standards and … frameworks across web, mobile, and cloud-native applications. Provide security guidance throughout product development, including threat modeling, secure coding, design reviews, and architecture assessments. Lead the implementation of DevSecOps practices, integrating security into CI/CD pipelines. Identify and remediate application-level vulnerabilities through static/dynamic analysis, manual code review, and security testing. Collaborate with engineering More ❯

Social network you want to login/join with: Senior Application Security Architect, oxford district col-narrow-left Client: Opus Recruitment Solutions Location: oxford district, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Opus are looking for multiple experienced Application Security … team. As our client continues the development and improvement of their overall cyber team, they’re looking for AppSec specialists to shape the strategic direction of our clients application security posture, collaborating with developers, product managers, and security stakeholders to ensure that security is embedded throughout the SDLC. Main Responsibilities: Define and enforce secure architecture standards and … frameworks across web, mobile, and cloud-native applications. Provide security guidance throughout product development, including threat modeling, secure coding, design reviews, and architecture assessments. Lead the implementation of DevSecOps practices, integrating security into CI/CD pipelines. Identify and remediate application-level vulnerabilities through static/dynamic analysis, manual code review, and security testing. Collaborate with engineering More ❯

Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Opus are looking for multiple experienced Application Security Architects to join our clients growing AppSec team. As our client continues the development and improvement of their overall cyber team, they’re looking for AppSec specialists to shape … the strategic direction of our clients application security posture, collaborating with developers, product managers, and security stakeholders to ensure that security is embedded throughout the SDLC. Main Responsibilities: Define and enforce secure architecture standards and frameworks across web, mobile, and cloud-native applications. Provide security guidance throughout product development, including threat modeling, secure coding, design reviews … and architecture assessments. Lead the implementation of DevSecOps practices, integrating security into CI/CD pipelines. Identify and remediate application-level vulnerabilities through static/dynamic analysis, manual code review, and security testing. Collaborate with engineering and platform teams to secure APIs, microservices, and containerized workloads. Evaluate and implement security tools for secure code analysis and runtime More ❯

Senior Application Security Architect, reading Client: Opus Recruitment Solutions Location: reading, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 3 Posted: 26.06.2025 Expiry Date: 10.08.2025 Job Description: Opus are looking for multiple experienced Application Security Architects to join our clients growing AppSec team. As our client continues the development and improvement of their overall … cyber team, they’re looking for AppSec specialists to shape the strategic direction of our clients application security posture, collaborating with developers, product managers, and security stakeholders to ensure that security is embedded throughout the SDLC. Main Responsibilities: Define and enforce secure architecture standards and frameworks across web, mobile, and cloud-native applications. Provide security guidance … throughout product development, including threat modeling, secure coding, design reviews, and architecture assessments. Lead the implementation of DevSecOps practices, integrating security into CI/CD pipelines. Identify and remediate application-level vulnerabilities through static/dynamic analysis, manual code review, and security testing. Collaborate with engineering and platform teams to secure APIs, microservices, and containerized workloads. Evaluate and More ❯

Application Security Architect, oxford district Client: Opus Recruitment Solutions Location: oxford district, United Kingdom Job Category: Other - EU work permit required: Yes Job Views: 7 Posted: 28.06.2025 Expiry Date: 12.08.2025 Job Description: Opus are looking for multiple experienced Application Security Architects to join our clients growing AppSec team. As our client continues the development and improvement of their … overall cyber team, they’re looking for AppSec specialists to shape the strategic direction of our clients application security posture, collaborating with developers, product managers, and security stakeholders to ensure that security is embedded throughout the SDLC. Main Responsibilities: Define and enforce secure architecture standards and frameworks across web, mobile, and cloud-native applications. Provide security guidance throughout product development, including threat modeling, secure coding, design reviews, and architecture assessments. Lead the implementation of DevSecOps practices, integrating security into CI/CD pipelines. Identify and remediate application-level vulnerabilities through static/dynamic analysis, manual code review, and security testing. Collaborate with engineering and platform teams to secure APIs, microservices, and containerized workloads. More ❯

Social network you want to login/join with: Senior Application Security Architect, slough col-narrow-left Client: Opus Recruitment Solutions Location: slough, United Kingdom Job Category: Other - EU work permit required: Yes col-narrow-right Job Views: 3 Posted: 26.06.2025 Expiry Date: 10.08.2025 col-wide Job Description: Opus are looking for multiple experienced Application Security Architects to … team. As our client continues the development and improvement of their overall cyber team, they’re looking for AppSec specialists to shape the strategic direction of our clients application security posture, collaborating with developers, product managers, and security stakeholders to ensure that security is embedded throughout the SDLC. Main Responsibilities: Define and enforce secure architecture standards and … frameworks across web, mobile, and cloud-native applications. Provide security guidance throughout product development, including threat modeling, secure coding, design reviews, and architecture assessments. Lead the implementation of DevSecOps practices, integrating security into CI/CD pipelines. Identify and remediate application-level vulnerabilities through static/dynamic analysis, manual code review, and security testing. Collaborate with engineering More ❯

Contract and Permanent resources. The rate/salary depends on your experience, ranging from 3 to 30 years. The requirements are as follows: Manual Testers/QA Analysts & Automation Testing Execute test cases manually. Focus on UI/UX, functionality, user stories, and regression. Tools: Excel, TestRail, Zephyr, Jira, Quality Center. Create and execute automated test scripts. Improve test … coverage and speed up regression cycles. Tools: UFT (Unified Functional Testing) – enterprise tool for functional/regression testing (VBScript). Selenium Cypress Appium Playwright, TestComplete, Ranorex, Robot Framework. SDET Testing (Software Development Engineer in Test) Ideally a developer-tester hybrid. Write testing frameworks and contribute to production code. Build integration and end-to-end automation pipelines. … Performance/Load Testing Simulate real-world load and stress on systems. Ensure system performance, scalability, and reliability. Tools: JMeter, LoadRunner, Gatling, Neoload. Functional Testing Verify software functions as per business requirements. Integration Testing Ensure different modules/components interact correctly. Test APIs, databases, and service flows. Security Testing & Penetration Testing (Ethical Hacking) Simulate More ❯

both Contract and Permanent resources. The rate/salary depends on experience, ranging from 3 to 30 years. The requirements are as follows: Manual Testers/QA Analysts & Automation Testing Execute test cases manually. Focus on UI/UX, functionality, user stories, and regression. Tools: Excel, TestRail, Zephyr, Jira, Quality Center. Create and execute automated test scripts. Improve test … coverage, speed up regression cycle. Tools: UFT (Unified Functional Testing) – enterprise tool for functional/regression testing (VBScript). Selenium Cypress Appium Playwright, TestComplete, Ranorex, Robot Framework. SDET Testing (Software Development Engineer in Test) Ideally a Developer-tester hybrid. Write testing frameworks and contribute to production code. Build integration and end-to-end automation pipelines. Performance …/Load Testing Simulate real-world load and stress on systems. Ensure system performance, scalability, and reliability. Tools: JMeter, LoadRunner, Gatling, Neoload. Functional Testing Verify that software functions as per business requirements. Integration Testing Ensure different modules/components interact correctly. Test APIs, databases, and service flows. Security Testing & Penetration Testing (Ethical Hacking) Simulate More ❯

resources, and the rate/salary is totally dependant on your experience, from 3 years to 30 years. The requirements are as follows: Manual Testers/QA Analysts & Automation Testing Execute test cases manually. Focus on UI/UX, functionality, user stories, and regression. Tools: Excel, TestRail, Zephyr, Jira, Quality Center. Create and execute automated test scripts. Improve test … coverage, speed up regression cycle. Tools: UFT (Unified Functional Testing) – enterprise tool for functional/regression testing (VBScript). Selenium Cypress Appium Playwright , TestComplete , Ranorex , Robot Framework . SDET Testing (Software Development Engineer in Test) Ideally Developer-tester hybrid. Write testing frameworks and also contribute to production code. Build integration and end-to-end automation pipelines. … Performance/Load Testing Simulates real-world load and stress on systems. Ensures system performance, scalability, and reliability. Tools: JMeter , LoadRunner , Gatling , Neoload . Functional Testing Verify that software functions as per business requirements. Integration Testing Focus on ensuring different modules/components interact correctly. Test APIs, databases, and service flows. Security Testing & Penetration Testing More ❯

experience with infrastructure as code deployments using tools such as BICEP, Red Hat Ansible, or Terraform. Knowledge of secure infrastructure configuration and regulatory compliance, including disaster recovery planning and security testing. Ability to effectively communicate complex technical concepts to both technical teams and business leadership. Banking or financial industry experience would be highly beneficial. No specific educational requirements; proven … skills gaps and resolve team resourcing challenges. Ensure infrastructure availability, scalability, performance, and alignment with corporate IT strategy. Maintain secure, compliant infrastructure environments with robust documentation. Oversee operational and security testing, including penetration testing. Keep stakeholders informed on progress and risks. #J-18808-Ljbffr More ❯

project managers and business analysts to translate business requirements into technical solutions. Working closely with stakeholders and test leads to ensure business requirements are met. Perform system performance and security testing to ensure optimisation, stability and reliability. Create and maintain documentation for system configurations, development processes, testing and user guides. Assist with data migration and integration activities More ❯